Revert "build"

This reverts commit b6bc5391cf.

frontend/Dockerfile

@@ -1,9 +1,18 @@
 # syntax=docker/dockerfile:1
 
+FROM node:20-alpine AS build
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci --no-audit --no-fund
+
+COPY . .
+RUN npm run build
+
 FROM nginx:alpine
 WORKDIR /usr/share/nginx/html
 
-COPY dist ./
+COPY --from=build /app/dist ./
 
 ENV API_PROXY_PASS=""